Humphead Wrasse (image) Wildlife Conservation Society Share Print E-Mail Caption A humphead wrasse off the coast of East Africa is shown. A new study by WCS has found fish biomass to be of greater importance than geographical location and other factors in determining the species richness of coral reef systems. Credit Tim McClanahan/WCS Usage Restrictions One-time usage only Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.